Cable for a cable lock

ABSTRACT

A cable for a cable lock has a core and multiple outer wires. The outer wires are twisted around the core. At least one of the core and the outer wires is fabricated by multiple twisted threads made of a pliable but strong material. Wherein, the threads are made of Kevlar™ fiber or the like. With such a cable, the cable has both good resilience and good strength. The use of the cable is convenient, and the useful life of the cable is long.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a cable, and more particularlyto a cable for a cable lock.

[0003] 2. Description of Related Art

[0004] A cable lock is commonly used to lock a bicycle, a motorcycle ora computer. A conventional cable lock comprises a latch assembly and acable. The latch assembly substantially comprises a body and a latchbolt respectively mounted on two ends of the cable. The cable isconstructed of multiple steel wires twisted together. Although the cablecomposed of twisted multiple steel wires has both strength andresilience, the conventional cable is hard to bend or stretch whenrequired in certain situations. Thus, the conventional cable isinconvenient in use.

[0005] Another conventional cable in accordance with the prior art isconstructed of a core and multiple steel wires. The core is a rope madeof hemp, flax, jute and so on. The steel wires are twisted around thecore. However, although the conventional cable with a core has a goodresilience to be easily bent or stretched, the structural strength ofthe conventional cable is not enough and thus cannot provide reliablesecurity. The core made of hemp or the like is easily damaged due to anexternal force or weather effect and so the useful life of theconventional cable is short.

[0006] To overcome the shortcomings, the present invention tends toprovide a cable for a cable lock to mitigate or obviate theaforementioned problems.

SUMMARY OF THE INVENTION

[0007] The main objective of the invention is to provide a cable for acable lock and having good strength and resilience. The cable has a coreand multiple outer wires. The outer wires are twisted around the core.At least one of the core and the outer wires is fabricated by multipletwisted threads made of a pliable but strong material such as Kevlar™fiber or the like. Consequently, the cable has good resilience to beeasily bent or stretched when used and good rigidity so as to be noteasily broken. The use of the cable is convenient, and the useful lifeof the cable is long.

[0008] Other objects, advantages and novel features of the inventionwill become more apparent from the following detailed description whentaken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0009]FIG. 1 is a perspective view of a first embodiment of a cable lockwith a cable in accordance with the present invention;

[0010]FIG. 2 is a perspective view of a second embodiment of a cablelock with a cable in accordance with the present invention;

[0011]FIG. 3 is a side plan view of the cable in FIG. 1 or FIG. 2;

[0012]FIG. 4 is a cross sectional side plan view of the cable in FIG. 3;and

[0013]FIG. 5 is a cross sectional side plan view of a second embodimentof a cable in accordance with the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

[0014] With reference to FIGS. 1 and 2, a cable lock comprises a latchassembly (10) and a cable (20). The latch assembly (10) has a body (11)and a latch bolt (12) respectively attached to two ends of the cable(20). A hole is defined in the body (11) for the latch bolt (12) to beinserted into the hole. A locking device is mounted in the body (11) tolock the latch bolt (12). Consequently, the cable lock can be used tolock bicycles, motorcycles or computers to an immovable object toprevent theft or unauthorized movement.

[0015] With reference to FIGS. 3 and 4, the cable (20) in accordancewith the present invention comprises a core (22) and multiple outerwires (21,212). The core (22) is made of multiple twisted threads. Thethreads are made of a pliable but strong material, such as Kevlar™ fiberor the like. The outer wires (21,212) are made of multiple twisted steelthreads and are twisted around the core (22). In addition, a coat (23)made of a resilient material such a plastic material or a rubbermaterial encloses the outer wires (21,212) and the core (22) to providea protecting effect to the outer wires (21,212) and the core (22).Furthermore, the coat (23) can be of different colors to improve theappearance of the cable lock

[0016] Accordingly, because there is the core (22) made of a pliable butstrong material arranged in the cable (20), the cable (20) has both goodstrength and good resilience. With that good strength, the cable (20) isnot easily broken by an external force or weather effect. With that goodresilience, the cable (20) is easily bent or stretched when required.The use of the cable (20) is convenient, and the useful life of thecable (20) is long.

[0017] In another embodiment, with reference to FIG. 5, the core (22 a)is made of multiple twisted steel threads, and at least one of the outerwires (212 a) is made of multiple twisted threads those are made of apliable but strong material, such as Kevlar™ fiber or the like.Accordingly, the cable (20) shown in FIG. 5 can also provide both goodstrength and good resilience. In addition, because the outer wire (212a) made of the Kevlar™ fiber can be easily painted in different colors,the appearance of the cable (20) is versatile due to the variety of theouter wires (21,212 a) in colors.

[0018] Even though numerous characteristics and advantages of thepresent invention have been set forth in the foregoing description,together with details of the structure and function of the invention,the disclosure is illustrative only, and changes may be made in detail,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

What is claimed is:
 1. A cable for a cable lock comprising: a corefabricated by multiple twisted threads; and multiple outer wires twistedaround the core and each made of multiple twisted threads, wherein, thethreads of at least one of the core and the outer wires are made of apliable and strong material; and the pliable and strong material isKevlar fiber.
 2. The cable as claimed in claim 1 further comprising acoat made of a resilient material and enclosing the outer wires and thecore.
 3. The cable as claimed in claim 1, wherein the threads of thecore are made of Kevlar fiber.
 4. The cable as claimed in claim 1,wherein the threads of one of the outer wires are made of Kevlar fiber.